Determine the two lowest natural frequencies of the torsion

Question

Determine the two lowest natural frequencies of the torsion al system shown in Figure for the following values of J, K, and n

J1=15 lb.in.s²

J2=10 lb.in.s²

J3=18 lb.in.s²

J4=6 lb.in.s²

K1=2×10⁶ lb.in/rad

K2=1.6×10⁶lb.in/rad

K3=1×10⁶lb.in/rad

K4=4×10⁶lb.in/rad

Speed ratio of the drive shaft to axle = 4 to 1

What are the amplitude ratios of J₂ to J₁ at the natural frequencies?

The response must be typed, single spaced, must be in times new roman font (size 12) and must follow the APA format.